An object traveling at a constant 20 m/sec in
a circular path is changing its
1. velocity.
2. speed.
3. weight.
4. mass.
It would either be velocity or speed right? I would assume the weight nor the mass change.
When an object moves in a circular path at a constant speed, it is undergoing uniform circular motion. Let's analyze the given options one by one.
1. Velocity: Velocity is a vector quantity that includes both speed and direction. In circular motion, even if the speed is constant, the direction of velocity changes continuously. Therefore, the object's velocity is changing.
2. Speed: Speed is a scalar quantity that only refers to the magnitude of the object's motion. In circular motion, if the object is moving at a constant speed, the speed remains the same. Hence, the object's speed is not changing.
3. Weight: Weight is the force exerted on an object due to gravity. It depends on the mass of the object and the acceleration due to gravity, but not on the object's motion. Therefore, the object's weight is not changing.
4. Mass: Mass is the quantity of matter in an object. It is a fundamental property of an object and remains constant regardless of its motion. Hence, the object's mass is not changing.
To summarize, the object traveling at a constant 20 m/sec in a circular path is changing its velocity but not its speed, weight, or mass.
You must have some idea. Take a guess and explain your choice.
This is a trivial question.